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//===- TpiHashing.h ---------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEBUGINFO_PDB_TPIHASHING_H
#define LLVM_DEBUGINFO_PDB_TPIHASHING_H
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/DebugInfo/CodeView/TypeIndex.h"
#include "llvm/DebugInfo/CodeView/TypeRecord.h"
#include "llvm/DebugInfo/CodeView/TypeVisitorCallbacks.h"
#include "llvm/DebugInfo/PDB/Native/RawError.h"
#include "llvm/Support/BinaryStreamArray.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/Error.h"
#include <cstdint>
#include <string>
namespace llvm {
namespace pdb {
class TpiHashUpdater : public codeview::TypeVisitorCallbacks {
public:
TpiHashUpdater() = default;
#define TYPE_RECORD(EnumName, EnumVal, Name) \
virtual Error visitKnownRecord(codeview::CVType &CVR, \
codeview::Name##Record &Record) override { \
visitKnownRecordImpl(CVR, Record); \
return Error::success(); \
}
#define TYPE_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
#define MEMBER_RECORD(EnumName, EnumVal, Name)
#define MEMBER_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
#include "llvm/DebugInfo/CodeView/TypeRecords.def"
private:
template <typename RecordKind>
void visitKnownRecordImpl(codeview::CVType &CVR, RecordKind &Record) {
CVR.Hash = 0;
}
void visitKnownRecordImpl(codeview::CVType &CVR,
codeview::UdtSourceLineRecord &Rec);
void visitKnownRecordImpl(codeview::CVType &CVR,
codeview::UdtModSourceLineRecord &Rec);
void visitKnownRecordImpl(codeview::CVType &CVR, codeview::ClassRecord &Rec);
void visitKnownRecordImpl(codeview::CVType &CVR, codeview::EnumRecord &Rec);
void visitKnownRecordImpl(codeview::CVType &CVR, codeview::UnionRecord &Rec);
};
class TpiHashVerifier : public codeview::TypeVisitorCallbacks {
public:
TpiHashVerifier(FixedStreamArray<support::ulittle32_t> &HashValues,
uint32_t NumHashBuckets)
: HashValues(HashValues), NumHashBuckets(NumHashBuckets) {}
Error visitKnownRecord(codeview::CVType &CVR,
codeview::UdtSourceLineRecord &Rec) override;
Error visitKnownRecord(codeview::CVType &CVR,
codeview::UdtModSourceLineRecord &Rec) override;
Error visitKnownRecord(codeview::CVType &CVR,
codeview::ClassRecord &Rec) override;
Error visitKnownRecord(codeview::CVType &CVR,
codeview::EnumRecord &Rec) override;
Error visitKnownRecord(codeview::CVType &CVR,
codeview::UnionRecord &Rec) override;
Error visitTypeBegin(codeview::CVType &CVR) override;
private:
Error verifySourceLine(codeview::TypeIndex TI);
Error errorInvalidHash() {
return make_error<RawError>(
raw_error_code::invalid_tpi_hash,
"Type index is 0x" +
utohexstr(codeview::TypeIndex::FirstNonSimpleIndex + Index));
}
FixedStreamArray<support::ulittle32_t> HashValues;
codeview::CVType RawRecord;
uint32_t NumHashBuckets;
uint32_t Index = -1;
};
} // end namespace pdb
} // end namespace llvm
#endif // LLVM_DEBUGINFO_PDB_TPIHASHING_H
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